01669nam a22002657a 4500 2912 FISKH 20251127083611.0 240123b cb ||||| |||| 00| 0 eng d 9781407107158 FISKH eng FISKH FISKH Z103.3 652.8 Poskitt, Kjartan The secret life of codes ; It's maths with the laughs added in! / Kjartan Poskitt ; illustrated by philip Reeve This edition published in 2010 London : Scholastic, 2007 157 pages : illustrations ; 20 cm Murderous Maths Did you ever want to send a message that only your friend can read? Or did you want to try and uncover a secret communication from someone else? If so, then here's everything you need to know about creating and cracking codes--from the simplest substitution messages to the secrets of the well-known World War II coding contraption, the amazing Enigma Machine! The book includes information about: Substitution codes Scrambling codes Codes containing unrecognizable symbols Other message systems such as Morse code and flags And how to make your own Enigma machine! You'll be thrilled as this amusing book takes you on a codebreaking adventure, learning ways to decode both simple and difficult puzzles, as well as provides you with a history on the cryptology. Filled with tips and enjoyable illustrations by Ian Baker, Codes will have you sending secret messages in no time. Murderous Maths Nonfiction Codes Reeve, Philip illustrator ddc BK 0 2912 2912 0 0 ddc 0 0 NFIC 001 001 TKSNF 2024-01-23 0 POS 652.8 Z103.3 FISTK03933 2024-01-23 11:03:00 1 2024-01-23 BK 0 0 ddc 0 0 NFIC 002 002 SNS 2025-11-25 0 POS 652.8 Z103.3 FISSE00079 2025-11-25 16:14:00 2 2025-11-25 BK